No matter your tastes, whether you’re into stately neoclassical, ’60s mod, or swooping steel-and-glass, Chicago has an architecture style for you. And if you’re happy to gawk up at all of the above, it’s a feast. Stop into The Rookery, one of the most iconic structures by World Exhibition designers Burnham and Root, for a tour of the lobby ($7), which was given a gold-and-glass update by Frank Lloyd Wright in 1905. For a free glimpse at an architectural marvel, stop into the Chicago Cultural Center.

The space not only offers programs and classes throughout the year, the building’s showpiece is a swoon-worthy Tiffany glass dome — the largest in the world. For more modern trappings, snap photos of the famous “corn cob” towers, more formally known as Marina City, situated right on the Chicago River, then warm up by the fire in the lobby of the nearby Raddison Blu at the Aqua.

The exterior by architect Jeanne Gang, with its irregularly shaped balconies, is a geometric feast for the eye, and the hotel lobby has a coffee bar and a sleek gas fireplace that spans the length of the room. Be sure to pop into the expansive lobby of the Palmer House Hilton, with its brilliantly frescoed ceiling by French artist Louis Pierre Rigal. Have a drink at the bar, but be sure to stop at the Monroe St. entrance for a glimpse at the gilded “peacock door” — another scrolling Tiffany confection that dates back to the days when there was a fine jewelry store in the building.